Digital BW, The Print

I have no experience with the larger printers, but I have looked at my 2200
output with images from 240 to 720 DPI and I see no difference. I haven't
used a 10X loupe, but I don't expect people looking at my prints will be
using one either.
Bert

Bert Katzung
katzung1@...
http://www.astronomy-images.com
http://www.visionlightgallery.com/katzung/

----- Original Message ----- 
From: "Paul Roark" <paul.roark@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Sunday, March 12, 2006 10:44 PM
Subject: RE: [Digital BW] File Resolution


I don't think sending 720 to a desktop Epson will ever degrade the image.
I've experimented with files that had resolutions above that and noticed
that some information was simply omitted by the driver.  As such, I would
rather have Photoshop do my re-sizing down to at most 720 for the desktop
units.  For the older large format printers I've heard that 360 is their
native resolution.  Again, Photoshop may do a better job of re-sizing than
Epson.  On the other hand, I'd be skeptical that anyone would ever see the
differences.  I usually limit the large images to 360 just to save time.  On
desktop units, however, many people claim they can see improvements up to
720.

Paul
www.PaulRoark.com


> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Peter
> De Smidt
> Sent: Sunday, March 12, 2006 7:00 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] File Resolution
>
> I've finally gotten around to scanning some of my 4x5 negatives, and I
> wonder what ppi I should send to the printer. Given the large size of my
> files, I could send a 720 ppi file without resizing, but some think that
> this leads to a drop in quality.  For example, In Real World Photoshop
> CS2, Bruce Fraser and David Blatner say, "It's certainly possible to
> send too much data to an inkjet printer, not only increasing print times
> unconsciously but also degrading the image. You do not want to send a
> 1440-ppi image to a 1440 dpi inkjet." (p843.)  I seem to remember them
> saying that 720 ppi is too much as well.  They recommend 480 ppi for
> small prints, and 360 or 240 for large one.  To meet this requirement,
> I'd have to significanly down-sample my files, at least with my R2400.
> Anyone have any thoughts on this?
>
>
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Please visit the Group Homepage to check the Files, and other resources as
they are often being updated.

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

If you wish to receive no emails or just a daily digest, or you wish to
unsubscribe, please edit your Membership preferences by visiting this same
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Please follow these basic guidelines:
- As threads develop, trim off excess portions of earlier messages to keep
them short.
- Good manners are required at all time. No personal attacks or flames.
Hostile, aggressive or argumentative users may be removed from the
membership without notice.
- Keep your posts and threads related to the group topic of digital B&W
printing. Users who persistently make off-topic posts may be removed from
the membership.
- By posting on this forum you agree to abide by the group rules and
guidelines, and to abide by the actions and decisions of the group Owner and
Moderators. See "Group Topic, Rules and Guidelines" in the Files section:
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BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT
YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE "OWNER" AND
"MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY
DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS,
GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  "OWNER" AND
"MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY
TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR
ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY
THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER
MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.

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